The Best Sb6121 Modem of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Sb6121 Modem of 2025. Check our ranking below.
2,118 Reviews Scanned
- Compatible with Time Warner Cable, Charter, Cox, Cablevision, and more
- Not compatible with Verizon FiOS or AT&T U-verse, no longer approved by Comcast Xfinity
- Requires Cable Iternet Service, if not sure your provider is CABLE call them to confirm
- BROWN BOX models NOT VALID for this item when sold as New, should report to Amazon immediately and RETURN to Seller
- Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
- 32 downstream x 8 upstream DOCSIS 3.0 bonded channels
- 1 Gigabit Ethernet port for connecting to a Wi-Fi router or other device.
- Cable internet service required. Does not inlcude Wi-Fi and does not support cable digital voice service.
- arris
- 32x8 Cable Modem
- This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty. IMPORTANT NOTEL: A few units might show the brand as Motorola (and not Arris) as Arris had acquired Motorola for 2 years; hence it will be the same product and the same model
- Requires CABLE Internet Service, if not sure your provider is CABLE call them to confirm. Does NOT work with Charter cable provider.
- Compatible with MOST Major CABLE providers like Comcast/Xfinity, Cox, Time Warner, Mediacom, Bright House.
- Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
- Internet download speeds up to 172 Mbps and upload speeds up to 131 Mbps based on your Cable provider service. Good for streaming Video and gaming on multiple devices at a time.
- Multi‑Gig speed for today & tomorrow: DOCSIS 3.1 performance supports cable internet plans up to 2 Gbps, delivering ultra‑fast streaming, gaming, and downloads.
- Save on rental fees: Own your modem and avoid monthly equipment charges—check with your cable provider for plan compatibility.
- Compact, modern design: Space‑saving footprint with discrete LED indicators for power, upstream/downstream, and online status.
- Easy setup: Connect cable, power on, and activate with your cable provider. Then connect a Wi‑Fi router to the Ethernet port for home Wi-Fi coverage.
- Modem only: This cable modem requires a separate Wi-Fi router or mesh system for home Wi-Fi network.
- Approved for Cox and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Froniter or other Fiber Optic, DSL or Satellite internet service providers.
- Does NOT include Wi-Fi and Does NOT support cable digital voice service.
- The SB6190 is a DOCSIS 3.0 cable modem capable of bonding up to 32 downstream and 8 upstream channels. It's best for internet speed plans up to 800 Mbps. Plus, when you purchase your modem, not only are you powering your home network with the latest technology, but you also save money on modem rental fees. Own your modem and start saving today!
- 32 downstream x 8 upstream DOCSIS 3.0 bonded channels
- 1 Gigabit Ethernet port for connecting to a Wi-Fi router or other device.
Last update on 2025-07-29 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: What is the best modem on the market?
A: Motorola ● Cisco ARRIS NETGEAR Linksys Ubee (Ambit) D-Link TP-Link Asus Toshiba Actiontec
Q: What is the average speed of a cable modem?
A: A typical residential cable modem connection ranges anywhere from 3 to 15 Mbps ( Megabits per second) downstream, and 1-3 Mbps upstream. Cable modem speed is not guaranteed and often fluctuates, since the available bandwidth is shared between many users on the same node.
Q: How do I test my cable modem?
A: To test your modem: On the main menu under Diagnostics, select Test Modem. Select one of the following tests by clicking the corresponding radio button: Performs handshake and offhook tests. If these tests fail, run the handshake test and the offhook test individually to determine the reason for the failure.